compound assignment operator c

This browser is no longer supported.

Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.

C Compound Assignment

• 6 contributors

The compound-assignment operators combine the simple-assignment operator with another binary operator. Compound-assignment operators perform the operation specified by the additional operator, then assign the result to the left operand. For example, a compound-assignment expression such as

expression1 += expression2

can be understood as

expression1 = expression1 + expression2

However, the compound-assignment expression is not equivalent to the expanded version because the compound-assignment expression evaluates expression1 only once, while the expanded version evaluates expression1 twice: in the addition operation and in the assignment operation.

The operands of a compound-assignment operator must be of integral or floating type. Each compound-assignment operator performs the conversions that the corresponding binary operator performs and restricts the types of its operands accordingly. The addition-assignment ( += ) and subtraction-assignment ( -= ) operators can also have a left operand of pointer type, in which case the right-hand operand must be of integral type. The result of a compound-assignment operation has the value and type of the left operand.

In this example, a bitwise-inclusive-AND operation is performed on n and MASK , and the result is assigned to n . The manifest constant MASK is defined with a #define preprocessor directive.

C Assignment Operators

Was this page helpful?

Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see: https://aka.ms/ContentUserFeedback .

Submit and view feedback for

Additional resources

cppreference.com

Assignment operators.

Assignment and compound assignment operators are binary operators that modify the variable to their left using the value to their right.

[ edit ] Simple assignment

The simple assignment operator expressions have the form

Assignment performs implicit conversion from the value of rhs to the type of lhs and then replaces the value in the object designated by lhs with the converted value of rhs .

Assignment also returns the same value as what was stored in lhs (so that expressions such as a = b = c are possible). The value category of the assignment operator is non-lvalue (so that expressions such as ( a = b ) = c are invalid).

rhs and lhs must satisfy one of the following:

• both lhs and rhs have compatible struct or union type, or..
• rhs must be implicitly convertible to lhs , which implies
• both lhs and rhs have arithmetic types , in which case lhs may be volatile -qualified or atomic (since C11)
• both lhs and rhs have pointer to compatible (ignoring qualifiers) types, or one of the pointers is a pointer to void, and the conversion would not add qualifiers to the pointed-to type. lhs may be volatile or restrict (since C99) -qualified or atomic (since C11) .
• lhs is a (possibly qualified or atomic (since C11) ) pointer and rhs is a null pointer constant such as NULL or a nullptr_t value (since C23)

[ edit ] Notes

If rhs and lhs overlap in memory (e.g. they are members of the same union), the behavior is undefined unless the overlap is exact and the types are compatible .

Although arrays are not assignable, an array wrapped in a struct is assignable to another object of the same (or compatible) struct type.

The side effect of updating lhs is sequenced after the value computations, but not the side effects of lhs and rhs themselves and the evaluations of the operands are, as usual, unsequenced relative to each other (so the expressions such as i = ++ i ; are undefined)

Assignment strips extra range and precision from floating-point expressions (see FLT_EVAL_METHOD ).

In C++, assignment operators are lvalue expressions, not so in C.

[ edit ] Compound assignment

The compound assignment operator expressions have the form

The expression lhs @= rhs is exactly the same as lhs = lhs @ ( rhs ) , except that lhs is evaluated only once.

[ edit ] References

• C17 standard (ISO/IEC 9899:2018):
• 6.5.16 Assignment operators (p: 72-73)
• C11 standard (ISO/IEC 9899:2011):
• 6.5.16 Assignment operators (p: 101-104)
• C99 standard (ISO/IEC 9899:1999):
• 6.5.16 Assignment operators (p: 91-93)
• C89/C90 standard (ISO/IEC 9899:1990):
• 3.3.16 Assignment operators

[ edit ] See Also

Operator precedence

[ edit ] See also

• Recent changes
• Offline version
• What links here
• Related changes
• Upload file
• Special pages
• Printable version
• Permanent link
• Page information
• In other languages
• This page was last modified on 19 August 2022, at 08:36.
• This page has been accessed 54,567 times.
• Privacy policy
• About cppreference.com
• Disclaimers

Assignment and shorthand assignment operator in C

Quick links.

• Shorthand assignment

Assignment operator is used to assign value to a variable (memory location). There is a single assignment operator = in C. It evaluates expression on right side of = symbol and assigns evaluated value to left side the variable.

For example consider the below assignment table.

The RHS of assignment operator must be a constant, expression or variable. Whereas LHS must be a variable (valid memory location).

Shorthand assignment operator

C supports a short variant of assignment operator called compound assignment or shorthand assignment. Shorthand assignment operator combines one of the arithmetic or bitwise operators with assignment operator.

For example, consider following C statements.

The above expression a = a + 2 is equivalent to a += 2 .

Similarly, there are many shorthand assignment operators. Below is a list of shorthand assignment operators in C.

Compound assignment operators

The compound assignment operators consist of a binary operator and the simple assignment operator. They perform the operation of the binary operator on both operands and store the result of that operation into the left operand, which must be a modifiable lvalue.

The following table shows the operand types of compound assignment expressions:

Note that the expression

is equivalent to

The following table lists the compound assignment operators and shows an expression using each operator:

Although the equivalent expression column shows the left operands (from the example column) twice, it is in effect evaluated only once.

Home » Learn C Programming from Scratch » C Assignment Operators

C Assignment Operators

Summary : in this tutorial, you’ll learn about the C assignment operators and how to use them effectively.

Introduction to the C assignment operators

An assignment operator assigns the vale of the right-hand operand to the left-hand operand. The following example uses the assignment operator (=) to assign 1 to the counter variable:

After the assignmment, the counter variable holds the number 1.

The following example adds 1 to the counter and assign the result to the counter:

The = assignment operator is called a simple assignment operator. It assigns the value of the left operand to the right operand.

Besides the simple assignment operator, C supports compound assignment operators. A compound assignment operator performs the operation specified by the additional operator and then assigns the result to the left operand.

The following example uses a compound-assignment operator (+=):

The expression:

is equivalent to the following expression:

The following table illustrates the compound-assignment operators in C:

• A simple assignment operator assigns the value of the left operand to the right operand.
• A compound assignment operator performs the operation specified by the additional operator and then assigns the result to the left operand.

C Programming Tutorial

• Assignment Operator in C

Last updated on July 27, 2020

We have already used the assignment operator ( = ) several times before. Let's discuss it here in detail. The assignment operator ( = ) is used to assign a value to the variable. Its general format is as follows:

The operand on the left side of the assignment operator must be a variable and operand on the right-hand side must be a constant, variable or expression. Here are some examples:

The precedence of the assignment operator is lower than all the operators we have discussed so far and it associates from right to left.

We can also assign the same value to multiple variables at once.

here x , y and z are initialized to 100 .

Since the associativity of the assignment operator ( = ) is from right to left. The above expression is equivalent to the following:

Note that expressions like:

are called assignment expression. If we put a semicolon( ; ) at the end of the expression like this:

then the assignment expression becomes assignment statement.

Compound Assignment Operator #

Assignment operations that use the old value of a variable to compute its new value are called Compound Assignment.

Consider the following two statements:

Here the second statement adds 5 to the existing value of x . This value is then assigned back to x . Now, the new value of x is 105 .

To handle such operations more succinctly, C provides a special operator called Compound Assignment operator.

The general format of compound assignment operator is as follows:

where op can be any of the arithmetic operators ( + , - , * , / , % ). The above statement is functionally equivalent to the following:

Note : In addition to arithmetic operators, op can also be >> (right shift), << (left shift), | (Bitwise OR), & (Bitwise AND), ^ (Bitwise XOR). We haven't discussed these operators yet.

After evaluating the expression, the op operator is then applied to the result of the expression and the current value of the variable (on the RHS). The result of this operation is then assigned back to the variable (on the LHS). Let's take some examples: The statement:

is equivalent to x = x + 5; or x = x + (5); .

Similarly, the statement:

is equivalent to x = x * 2; or x = x * (2); .

Since, expression on the right side of op operator is evaluated first, the statement:

is equivalent to x = x * (y + 1) .

The precedence of compound assignment operators are same and they associate from right to left (see the precedence table ).

The following table lists some Compound assignment operators:

The following program demonstrates Compound assignment operators in action:

Expected Output:

Load Comments

• Intro to C Programming
• Installing Code Blocks
• Creating and Running The First C Program
• Basic Elements of a C Program
• Keywords and Identifiers
• Data Types in C
• Constants in C
• Variables in C
• Input and Output in C
• Formatted Input and Output in C
• Arithmetic Operators in C
• Operator Precedence and Associativity in C
• Increment and Decrement Operators in C
• Relational Operators in C
• Logical Operators in C
• Conditional Operator, Comma operator and sizeof() operator in C
• Implicit Type Conversion in C
• Explicit Type Conversion in C
• if-else statements in C
• The while loop in C
• The do while loop in C
• The for loop in C
• The Infinite Loop in C
• The break and continue statement in C
• The Switch statement in C
• Function basics in C
• The return statement in C
• Actual and Formal arguments in C
• Local, Global and Static variables in C
• Recursive Function in C
• One dimensional Array in C
• One Dimensional Array and Function in C
• Two Dimensional Array in C
• Pointer Basics in C
• Pointer Arithmetic in C
• Pointers and 1-D arrays
• Pointers and 2-D arrays
• Call by Value and Call by Reference in C
• Returning more than one value from function in C
• Returning a Pointer from a Function in C
• Passing 1-D Array to a Function in C
• Passing 2-D Array to a Function in C
• Array of Pointers in C
• Void Pointers in C
• The malloc() Function in C
• The calloc() Function in C
• The realloc() Function in C
• String Basics in C
• The strlen() Function in C
• The strcmp() Function in C
• The strcpy() Function in C
• The strcat() Function in C
• Character Array and Character Pointer in C
• Array of Strings in C
• Array of Pointers to Strings in C
• The sprintf() Function in C
• The sscanf() Function in C
• Structure Basics in C
• Array of Structures in C
• Array as Member of Structure in C
• Nested Structures in C
• Pointer to a Structure in C
• Pointers as Structure Member in C
• Structures and Functions in C
• Union Basics in C
• typedef statement in C
• Basics of File Handling in C
• fputc() Function in C
• fgetc() Function in C
• fputs() Function in C
• fgets() Function in C
• fprintf() Function in C
• fscanf() Function in C
• fwrite() Function in C
• fread() Function in C

Recent Posts

• Machine Learning Experts You Should Be Following Online
• 4 Ways to Prepare for the AP Computer Science A Exam
• Finance Assignment Online Help for the Busy and Tired Students: Get Help from Experts
• Top 9 Machine Learning Algorithms for Data Scientists
• Data Science Learning Path or Steps to become a data scientist Final
• Enable Edit Button in Shutter In Linux Mint 19 and Ubuntu 18.04
• Python 3 time module
• Pygments Tutorial
• How to use Virtualenv?
• Installing MySQL (Windows, Linux and Mac)
• What is if __name__ == '__main__' in Python ?
• Installing GoAccess (A Real-time web log analyzer)
• Installing Isso

Assignment Operators In C [ Full Information With Examples ]

Assignment Operators In C

Assignment operators is a binary operator which is used to assign values in a variable , with its right and left sides being a one-one operand. The operand on the left side is variable in which the value is assigned and the right side operands can contain any of the constant, variable, and expression.

The Assignment operator is a lower priority operator. its priority has much lower than the rest of the other operators. Its priority is more than just the comma operator. The priority of all other operators is more than the assignment operator.

We can assign the same value to multiple variables simultaneously by the assignment operator.

x = y = z = 100

Here x, y, and z are initialized to 100.

In C language, the assignment operator can be divided into two categories.

• Simple assignment operator
• Compound assignment operators

1. Simple Assignment Operator In C

This operator is used to assign left-side values ​​to the right-side operands, simple assignment operators are represented by (=).

2. Compound Assignment Operators In C

Compound Assignment Operators use the old value of a variable to calculate its new value and reassign the value obtained from the calculation to the same variable.

Examples of compound assignment operators are: (Example: + =, – =, * =, / =,% =, & =, ^ =)

Look at these two statements:

Here in this example, adding 5 to the x variable in the second statement is again being assigned to the x variable.

Compound Assignment Operators provide us with the C language to perform such operation even more effecient and in less time.

Syntax of Compound Assignment Operators

Here op can be any arithmetic operators (+, -, *, /,%).

The above statement is equivalent to the following depending on the function:

Let us now know about some important compound assignment operators one by one.

“+ =” -: This operator adds the right operand to the left operand and assigns the output to the left operand.

“- =” -: This operator subtracts the right operand from the left operand and returns the result to the left operand.

“* =” -: This operator multiplies the right operand with the left operand and assigns the result to the left operand.

“/ =” -: This operator splits the left operand with the right operand and assigns the result to the left operand.

“% =” -: This operator takes the modulus using two operands and assigns the result to the left operand.

There are many other assignment operators such as left shift and (<< =) operator, right shift and operator (>> =), bitwise and assignment operator (& =), bitwise OR assignment operator (^ =)

List of Assignment Operators In C

Read More -:

• What is Operators In C
• Relational Operators In C
• Logical Operators In C
• Bitwise Operators In C
• Arithmetic Operators In C
• Conditional Operator in C
• Download C Language Notes Pdf
• C Language Tutorial For Beginners
• C Programming Examples With Output
• 250+ C Programs for Practice PDF Free Download

Friends, I hope you have found the answer of your question and you will not have to search about the Assignment operators in C Language 

However, if you want any information related to this post or related to programming language, computer science, then comment below I will clear your all doubts.

If you want a complete tutorial of C language, then see here  C Language Tutorial . Here you will get all the topics of C Programming Tutorial step by step.

Friends, if you liked this post, then definitely share this post with your friends so that they can get information about the Assignment operators in C Language 

To get the information related to Programming Language, Coding, C, C ++, subscribe to our website newsletter. So that you will get information about our upcoming new posts soon.

Jeetu Sahu is A Web Developer | Computer Engineer | Passionate about Coding, Competitive Programming, and Blogging

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

PrepBytes Blog

ONE-STOP RESOURCE FOR EVERYTHING RELATED TO CODING

Sign in to your account

Forgot your password?

Login via OTP

We will send you an one time password on your mobile number

An OTP has been sent to your mobile number please verify it below

Register with PrepBytes

Assignment operator in c.

Last Updated on June 23, 2023 by Prepbytes

This type of operator is employed for transforming and assigning values to variables within an operation. In an assignment operation, the right side represents a value, while the left side corresponds to a variable. It is essential that the value on the right side has the same data type as the variable on the left side. If this requirement is not fulfilled, the compiler will issue an error.

What is Assignment Operator in C language?

In C, the assignment operator serves the purpose of assigning a value to a variable. It is denoted by the equals sign (=) and plays a vital role in storing data within variables for further utilization in code. When using the assignment operator, the value present on the right-hand side is assigned to the variable on the left-hand side. This fundamental operation allows developers to store and manipulate data effectively throughout their programs.

Example of Assignment Operator in C

For example, consider the following line of code:

Types of Assignment Operators in C

Here is a list of the assignment operators that you can find in the C language:

Simple assignment operator (=): This is the basic assignment operator, which assigns the value on the right-hand side to the variable on the left-hand side.

Addition assignment operator (+=): This operator adds the value on the right-hand side to the variable on the left-hand side and assigns the result back to the variable.

x += 3; // Equivalent to x = x + 3; (adds 3 to the current value of "x" and assigns the result back to "x")

Subtraction assignment operator (-=): This operator subtracts the value on the right-hand side from the variable on the left-hand side and assigns the result back to the variable.

x -= 4; // Equivalent to x = x – 4; (subtracts 4 from the current value of "x" and assigns the result back to "x")

* Multiplication assignment operator ( =):** This operator multiplies the value on the right-hand side with the variable on the left-hand side and assigns the result back to the variable.

x = 2; // Equivalent to x = x 2; (multiplies the current value of "x" by 2 and assigns the result back to "x")

Division assignment operator (/=): This operator divides the variable on the left-hand side by the value on the right-hand side and assigns the result back to the variable.

x /= 2; // Equivalent to x = x / 2; (divides the current value of "x" by 2 and assigns the result back to "x")

Bitwise AND assignment (&=): The bitwise AND assignment operator "&=" performs a bitwise AND operation between the value on the left-hand side and the value on the right-hand side. It then assigns the result back to the left-hand side variable.

x &= 3; // Binary: 0011 // After bitwise AND assignment: x = 1 (Binary: 0001)

Bitwise OR assignment (|=): The bitwise OR assignment operator "|=" performs a bitwise OR operation between the value on the left-hand side and the value on the right-hand side. It then assigns the result back to the left-hand side variable.

x |= 3; // Binary: 0011 // After bitwise OR assignment: x = 7 (Binary: 0111)

Bitwise XOR assignment (^=): The bitwise XOR assignment operator "^=" performs a bitwise XOR operation between the value on the left-hand side and the value on the right-hand side. It then assigns the result back to the left-hand side variable.

x ^= 3; // Binary: 0011 // After bitwise XOR assignment: x = 6 (Binary: 0110)

Left shift assignment (<<=): The left shift assignment operator "<<=" shifts the bits of the value on the left-hand side to the left by the number of positions specified by the value on the right-hand side. It then assigns the result back to the left-hand side variable.

x <<= 2; // Binary: 010100 (Shifted left by 2 positions) // After left shift assignment: x = 20 (Binary: 10100)

Right shift assignment (>>=): The right shift assignment operator ">>=" shifts the bits of the value on the left-hand side to the right by the number of positions specified by the value on the right-hand side. It then assigns the result back to the left-hand side variable.

x >>= 2; // Binary: 101 (Shifted right by 2 positions) // After right shift assignment: x = 5 (Binary: 101)

Conclusion The assignment operator in C, denoted by the equals sign (=), is used to assign a value to a variable. It is a fundamental operation that allows programmers to store data in variables for further use in their code. In addition to the simple assignment operator, C provides compound assignment operators that combine arithmetic or bitwise operations with assignment, allowing for concise and efficient code.

FAQs related to Assignment Operator in C

Q1. Can I assign a value of one data type to a variable of another data type? In most cases, assigning a value of one data type to a variable of another data type will result in a warning or error from the compiler. It is generally recommended to assign values of compatible data types to variables.

Q2. What is the difference between the assignment operator (=) and the comparison operator (==)? The assignment operator (=) is used to assign a value to a variable, while the comparison operator (==) is used to check if two values are equal. It is important not to confuse these two operators.

Q3. Can I use multiple assignment operators in a single statement? No, it is not possible to use multiple assignment operators in a single statement. Each assignment operator should be used separately for assigning values to different variables.

Q4. Are there any limitations on the right-hand side value of the assignment operator? The right-hand side value of the assignment operator should be compatible with the data type of the left-hand side variable. If the data types are not compatible, it may lead to unexpected behavior or compiler errors.

Q5. Can I assign the result of an expression to a variable using the assignment operator? Yes, it is possible to assign the result of an expression to a variable using the assignment operator. For example, x = y + z; assigns the sum of y and z to the variable x.

Q6. What happens if I assign a value to an uninitialized variable? Assigning a value to an uninitialized variable will initialize it with the assigned value. However, it is considered good practice to explicitly initialize variables before using them to avoid potential bugs or unintended behavior.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

• Linked List
• Segment Tree
• Backtracking
• Dynamic Programming
• Greedy Algorithm
• Operating System
• Company Placement
• Interview Tips
• General Interview Questions
• Data Structure
• Other Topics
• Computational Geometry
• Game Theory

Related Post

Null character in c, ackermann function in c, median of two sorted arrays of different size in c, number is palindrome or not in c, implementation of queue using linked list in c, c program to replace a substring in a string.

Compound-Assignment Operators

• Java Programming
• PHP Programming
• Javascript Programming
• Delphi Programming
• C & C++ Programming
• Ruby Programming
• Visual Basic
• M.A., Advanced Information Systems, University of Glasgow

Compound-assignment operators provide a shorter syntax for assigning the result of an arithmetic or bitwise operator. They perform the operation on the two operands before assigning the result to the first operand.

Compound-Assignment Operators in Java

Java supports 11 compound-assignment operators:

Example Usage

To assign the result of an addition operation to a variable using the standard syntax:

But use a compound-assignment operator to effect the same outcome with the simpler syntax:

• Conditional Operators
• Java Expressions Introduced
• Understanding the Concatenation of Strings in Java
• The 7 Best Programming Languages to Learn for Beginners
• Math Glossary: Mathematics Terms and Definitions
• The Associative and Commutative Properties
• The JavaScript Ternary Operator as a Shortcut for If/Else Statements
• Parentheses, Braces, and Brackets in Math
• Basic Guide to Creating Arrays in Ruby
• Dividing Monomials in Basic Algebra
• C++ Handling Ints and Floats
• An Abbreviated JavaScript If Statement
• Using the Switch Statement for Multiple Choices in Java
• How to Make Deep Copies in Ruby
• Definition of Variable
• The History of Algebra

Using Compound Assignment Operators in C: A Beginner's Guide

An assignment operator is used for assigning a value to a variable. The most common assignment operator is = (equal). The left side operand of the assignment operator is a variable and right side operand of the assignment operator is a value. The value on the right side must be of the same data-type of the variable on the left side otherwise the compiler will raise an error.

The code is a C program that demonstrates the use of compound assignment operators in C. Here is an explanation of each line of the code:

• int a=10,b=5; declares two variables a and b of type int and assigns them the values 10 and 5 respectively.
• a+=b; is the compound assignment operator +=, it performs a+b and assigns the value to a. It is equivalent to a=a+b.
• printf("A : %d",a); prints the value of a which is 15, this is the result after using += operator.
• a-=10; is the compound assignment operator -=, it performs a-10 and assigns the value to a. It is equivalent to a=a-10.
• printf("\nA : %d",a); prints the value of a which is 5, this is the result after using -= operator.
• return 0; The return 0; statement is used to indicate that the main function has completed successfully. The value 0 is returned as the exit status of the program, which indicates a successful execution.

When you run this code, it will perform the compound assignment operation on variables and print the results in the console.

Source Code

List of programs.

• C Introduction
• Hello World
• Basic Addition
• Data Types in C
• Variables and Literals in C
• Arithmetic Operator in C
• Example for Arithmetic Operator in C
• Assignment Operators in C Program
• Relational Operators in C Program
• Logical Operators in C Program
• Increment and Decrement Operators in C Program
• Bitwise Operators in C Program
• if Statement in C Program
• if else Statement in C Program
• else if Statement in C Program
• Nested if Statement in C Program
• Switch Statement in C Program
• Conditional Operator Statement in C Program
• School Management in C Program
• Library Management in C Program
• Find the given number is odd or even in C Program
• Check the given number is vowels or not in C Program
• Check the given number is Armstrong or not in C Program
• Hotel Management in C Program
• Goto Statement in C Program
• Hotel Management using goto in C Program
• While Loop in C Program
• Do while Loop in C Program
• For Loop in C Program
• Nested For Loop in C Program
• Break and Continue Statement in C Program
• ASCII Values in C Program
• Single Dimensional Array in C Program
• 2D Array in C Program
• String Function in C Program
• Math Function in C Program
• Function in C Program
• No Return Without Argument Function in C Program
• No Return With Argument Function in C Program
• Return Without Argument Function in C Program
• Return With Argument Function in C Program
• Recursion Function in C Program
• Call by Reference Function in C Program
• Local Variable in C Program
• Global Variable in C Program
• Static Variable in C Program
• Enumeration or enum in C Program
• Single pointer in C Program
• Double & Triple pointer in C Program
• Pointer Arithmetic in C Program
• Pointer Handle Array Values in C Program
• Void * Pointer in C Program
• Malloc Function in C Program
• Calloc Function in C Program
• Realloc Function in C Program
• Free Function in C Program
• Dangling Pointer in C Program
• Using Const in Pointer in C Program
• Structure in C Program
• Local and Global Structure in C Program
• Typedef in C Program
• Initializing & Accessing the Structure Members in C Program
• Access members of structure using pointer in C Program
• Structure as function arguments in C Program
• Array of Objects Structure in C Program
• Union in C Program
• Shop Management using Structure and Union in C Program
• Input and output functions in C Program
• Preprocessor Directives in C Program
• Read File in C Program
• Write File in C Program
• Multiplication tables in C Program
• Total no of even and odd numbers in an array in C Program
• Count Alphabets Digits and Special Characters in a String in C Program
• Convert string to uppercase in C Program
• Convert string to lowercase in C Program
• Display Fibonacci Sequence in C Program
• Greatest of n numbers in an array in C Program

Sample Programs

Switch case in c.

• Present Elevator Position
• Check Vowel or Consonent
• Hotel Management using Swtich Case

Conditional Operators in C

• Find Greatest Number
• Check Find Smallest Number
• Check Number Equal or Not
• Check Char. Vowel or Consonent
• Check Character Capital or Small

Goto Statement in C

• Consecutive Numbers
• Print Text Using Goto
• Print Odd Numbers
• Printing Tables
• Printing Sum of Values
• Printing Reverse Table
• Print Factorial in C

While Loop Example Programs

• Print numbers using While Loop
• Armstrong Number using While Loop
• Print Odd and Even numbers
• Print Positive and Negative numbers
• Print Prime or Composite Number Upto Limit
• Print Prime or Composite Number
• Reverse table using While Loop
• Print table using While Loop
• Covert Decimal to Binary using While Loop

Looping Statements in C

For loop example programs.

• Print Value upto limit
• Print Number upto limit
• Armstrong Number using For Loop
• Square Pattern using For Loop
• Flag Pattern using For Loop
• Diamond Pattern using For Loop
• Triangle Facing Downward using For Loop
• Triangle Facing upside using For Loop
• Right Angle Triangle facing left
• Right Angle Triangle facing right
• Reverse Number using For Loop
• Prime Number using For Loop
• Print Number divisible by 7
• Print tables using For Loop
• Reverse tables using For Loop
• Separate odd and even numbers
• Check prime or composite number
• Separate positive and negative number
• For Loop Patterns
• Square Pattern Outline using For Loop
• Triangle Outline Pattern
• Diamond Pattern Outline

Array Examples in C

One dimensional array.

• Add Elements to the Array
• Arrange array elements in Ascending
• Arrange array elements in Descending
• Insert an element using Array
• Update an element using Array
• Delete an element using Array
• Interchange an element using Array
• Reverse an element using Array
• Odd or Even Number using Array
• Positive and Negative Numbers using Array
• Armstrong Number 100 to 999
• Greatest Number using Array
• Smallest Number using Array
• Print values divisible by 7 using Array
• Convert binary to decimal using Array
• Convert decimal to binary using Array
• Convert decimal to octal using Array

Two Dimensional Array in C

• Print Two Dimensional Array
• Array Addition in Two-Dimenional Array
• Array Subtraction in Two-Dimensional Array
• Array Multiplication using Array
• Lower Triangular Matrix using Array
• Upper Triangluar Matrix using Array
• Print Unit Matrix using Array
• Check and Print Unit Matrix

String Example Programs in C

• Print text using String
• String Example
• String Comparison in C
• String Concatenation in C
• String Copy Example in C
• Convert Uppercase to Lowercase
• Remove Duplicate String
• Reverse text using String
• Toggle Case using String
• Conver text into Capital or Small
• Convert Lowercase to Uppercase
• Convert text into Ascending Order using
• Capitalising the first letter
• Check given strings Equal or Not
• Copy String using Predefined Function
• String Length using Predefined Function
• String Length without Predefined Function
• Uppercase to Lowercase using Predefined Function
• Check Palindrome or Not

Functions Example Programs in C

• Addition using return type and arguments
• Print marks using return type & arguments
• Function with no return and with arguments in c
• Print tables without arguments

Learn All in Tamil © Designed & Developed By Tutor Joes | Privacy Policy | Terms & Conditions

• Introduction to C
• Download MinGW GCC C Compiler
• Configure MinGW GCC C Compiler
• The First C Program
• Data Types in C
• Variables, Keywords, Constants
• If Statement
• If Else Statement
• Else If Statement
• Nested If Statement
• Nested If Else Statement
• Do-While Loop
• Break Statement
• Switch Statement
• Continue Statement
• Goto Statement
• Arithmetic Operator in C
• Increment Operator in C
• Decrement Operator in C
• Compound Assignment Operator
• Relational Operator in C
• Logical Operator in C
• Conditional Operator in C
• 2D array in C
• Functions with arguments
• Function Return Types
• Function Call by Value
• Function Call by Reference
• Recursion in C
• Reading String from console
• C strchr() function
• C strlen() function
• C strupr() function
• C strlwr() function
• C strcat() function
• C strncat() function
• C strcpy() function
• C strncpy() function
• C strcmp() function
• C strncmp() function
• Structure with array element
• Array of structures
• Formatted Console I/O functions
• scanf() and printf() function
• sscanf() and sprintf() function
• Unformatted Console I/O functions
• getch(), getche(), getchar(), gets()
• putch(), putchar(), puts()
• Reading a File
• Writing a File
• Append to a File
• Modify a File

Advertisement

+= operator

• Add operation.
• Assignment of the result of add operation.
• Statement i+=2 is equal to i=i+2 , hence 2 will be added to the value of i, which gives us 4.
• Finally, the result of addition, 4 is assigned back to i, updating its original value from 2 to 4.

Example with += operator

-= operator.

• Subtraction operation.
• Assignment of the result of subtract operation.
• Statement i-=2 is equal to i=i-2 , hence 2 will be subtracted from the value of i, which gives us 0.
• Finally, the result of subtraction i.e. 0 is assigned back to i, updating its value to 0.

Example with -= operator

*= operator.

• Multiplication operation.
• Assignment of the result of multiplication operation.
• Statement i*=2 is equal to i=i*2 , hence 2 will be multiplied with the value of i, which gives us 4.
• Finally, the result of multiplication, 4 is assigned back to i, updating its value to 4.

Example with *= operator

/= operator.

• Division operation.
• Assignment of the result of division operation.
• Statement i/=2 is equal to i=i/2 , hence 4 will be divided by the value of i, which gives us 2.
• Finally, the result of division i.e. 2 is assigned back to i, updating its value from 4 to 2.

Example with /= operator

Please share this article -.

Please Subscribe

Notifications

Please check our latest addition C#, PYTHON and DJANGO

• Selected Reading
• UPSC IAS Exams Notes
• Developer's Best Practices
• Questions and Answers
• Effective Resume Writing
• HR Interview Questions
• Computer Glossary

Compound Assignment Operators in C++

The compound assignment operators are specified in the form e1 op= e2, where e1 is a modifiable l-value not of const type and e2 is one of the following −

• An arithmetic type
• A pointer, if op is + or –

The e1 op= e2 form behaves as e1 = e1 op e2, but e1 is evaluated only once.

The following are the compound assignment operators in C++ −

Let's have a look at an example using some of these operators −

This will give the output −

Note that Compound assignment to an enumerated type generates an error message. If the left operand is of a pointer type, the right operand must be of a pointer type or it must be a constant expression that evaluates to 0. If the left operand is of an integral type, the right operand must not be of a pointer type.

Related Articles

• Compound assignment operators in C#
• Compound assignment operators in Java\n
• Assignment Operators in C++
• What are assignment operators in C#?
• Perl Assignment Operators
• Assignment operators in Dart Programming
• What are Assignment Operators in JavaScript?
• Compound operators in Arduino
• What is the difference between = and: = assignment operators?
• Passing the Assignment in C++
• Airplane Seat Assignment Probability in C++
• What is an assignment operator in C#?
• Copy constructor vs assignment operator in C++
• Ternary Operators in C/C++
• Unary operators in C/C++

Kickstart Your Career

Get certified by completing the course

• C++ Data Types
• C++ Input/Output
• C++ Pointers
• C++ Interview Questions
• C++ Programs
• C++ Cheatsheet
• C++ Projects
• C++ Exception Handling
• C++ Memory Management
• Compound Statements in C++
• Rethrowing an Exception in C++
• Variable Shadowing in C++
• Condition Variables in C++ Multithreading
• C++23 <print> Header
• Literals In C++
• How to Define Constants in C++?
• C++ Variable Templates
• Introduction to GUI Programming in C++
• Concurrency in C++
• Hybrid Inheritance In C++
• Dereference Pointer in C
• shared_ptr in C++
• Nested Inline Namespaces In C++20
• C++20 std::basic_syncbuf
• std::shared_mutex in C++
• Partial Template Specialization in C++
• Pass By Reference In C
• Address Operator & in C

Assignment Operators In C++

In C++, the assignment operator forms the backbone of many algorithms and computational processes by performing a simple operation like assigning a value to a variable. It is denoted by equal sign ( = ) and provides one of the most basic operations in any programming language that is used to assign some value to the variables in C++ or in other words, it is used to store some kind of information.

The right-hand side value will be assigned to the variable on the left-hand side. The variable and the value should be of the same data type.

The value can be a literal or another variable of the same data type.

Compound Assignment Operators

In C++, the assignment operator can be combined into a single operator with some other operators to perform a combination of two operations in one single statement. These operators are called Compound Assignment Operators. There are 10 compound assignment operators in C++:

• Addition Assignment Operator ( += )
• Subtraction Assignment Operator ( -= )
• Multiplication Assignment Operator ( *= )
• Division Assignment Operator ( /= )
• Modulus Assignment Operator ( %= )
• Bitwise AND Assignment Operator ( &= )
• Bitwise OR Assignment Operator ( |= )
• Bitwise XOR Assignment Operator ( ^= )
• Left Shift Assignment Operator ( <<= )
• Right Shift Assignment Operator ( >>= )

Lets see each of them in detail.

1. Addition Assignment Operator (+=)

In C++, the addition assignment operator (+=) combines the addition operation with the variable assignment allowing you to increment the value of variable by a specified expression in a concise and efficient way.

This above expression is equivalent to the expression:

2. Subtraction Assignment Operator (-=)

The subtraction assignment operator (-=) in C++ enables you to update the value of the variable by subtracting another value from it. This operator is especially useful when you need to perform subtraction and store the result back in the same variable.

3. Multiplication Assignment Operator (*=)

In C++, the multiplication assignment operator (*=) is used to update the value of the variable by multiplying it with another value.

4. Division Assignment Operator (/=)

The division assignment operator divides the variable on the left by the value on the right and assigns the result to the variable on the left.

5. Modulus Assignment Operator (%=)

The modulus assignment operator calculates the remainder when the variable on the left is divided by the value or variable on the right and assigns the result to the variable on the left.

6. Bitwise AND Assignment Operator (&=)

This operator performs a bitwise AND between the variable on the left and the value on the right and assigns the result to the variable on the left.

7. Bitwise OR Assignment Operator (|=)

The bitwise OR assignment operator performs a bitwise OR between the variable on the left and the value or variable on the right and assigns the result to the variable on the left.

8. Bitwise XOR Assignment Operator (^=)

The bitwise XOR assignment operator performs a bitwise XOR between the variable on the left and the value or variable on the right and assigns the result to the variable on the left.

9. Left Shift Assignment Operator (<<=)

The left shift assignment operator shifts the bits of the variable on the left to left by the number of positions specified on the right and assigns the result to the variable on the left.

10. Right Shift Assignment Operator (>>=)

The right shift assignment operator shifts the bits of the variable on the left to the right by a number of positions specified on the right and assigns the result to the variable on the left.

Also, it is important to note that all of the above operators can be overloaded for custom operations with user-defined data types to perform the operations we want.

Please Login to comment...

Similar reads.

• Geeks Premier League 2023
• Geeks Premier League

Improve your Coding Skills with Practice

What kind of Experience do you want to share?